Machine



(No Model.)

4 Sheets-Sheet 1.

J; HUNZINGER. Woon GAMING MACHINE.

WITNESS/58 WMM Patented Nov. 24, 1891'.

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(No Model.) sheets-sheet 2.

J. HUNZING-ER.

WOOD GARVING MACHINE.

No. 463,836. Patented Nov.'24, 1891.

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4 Sheets- Sheet 3.

(No Model.)

J. H-UNZING'BR. Woon GAMING MACHINE.

Patented Nov. 24, 1891,

l 511:4 #TL- i IIIII WIT/VESSES: M ALM M (No Model.) I l `4. sheets-sheet 4.

J. HUNZINGER. WOOD GARVINGMAQHINB. 1\Io.163,886. Patented Nov. 24, 1891.

. f MW Nirnn STATES JACOB HUNZINGER, OF

BROOKLYN, NEV YORK.

WOOD-CARVING MACHINE.

SPECIFICATION forming part of Letters Patent No. 463,836, dated NovemberA 24, 17891,.

applicati@ filed Api-n 1s, 1891.

To @ZZ whom t may concern:

Be it known that I, JACOB HUNZINGER, of Brooklyn, Kings county, State of New York, a citizen of Switzerland, have invented certain new and useful Improvements in Vood- Carving Machines, of which the following is a specification.

This invention relates to an improved woodcarving machine of that class in which the wood to be operated upon is supported on an adjustable table and in which the carvingtools are supported in bearings at the outer ends of jointed frames that are hinged to a vertically-supported transmitting-shaft and provided with a guide-pin vertically above the spindle of the carving-tool, the pin being supported in horizontal arms of the jointed frame, so as 4to be guided along the pattern which is supported on the top part of themachine.

The invention consists, in its general features, of a wood-carving machine in which the supporting-table for the wood to be carved is adapted to be adjusted vertically, as well as into a forwardly or backwardly inclined position; secondly, of a stop-motion for interrupting the rotary motion of the carving-tool by shifting its transmitting-belt to a loose pulley, and, thirdly, in a device for adjusting the spindle of the carving-tool, as well as the spindle of the guide-pin, into laterally-inclined pov sition, so as to extend thereby the range of the work which can be performed by the carving-machine.

The invention consists, further, of certain additional details of construction, which willl be fully described hereinafter, and finally pointed out in the claims.

In the accompanying drawings, Figure 1 respresents a side elevation of lmy improved carving-machine. Fig. 1fL is a detail sectional view of one of the sleeves on the spindle and pulleys thereon. Fig. 1* is a sectional plan view on the line 0c fr, Fig. lil. Fig. 2 isa plan of the same. Fig. 3 is a front elevation ofthe same. Figs. 4 and 5 are details of the adjusting mechanism for the spindle of the carvingtool. Figs. 6, 7, and 8 are details of the adjusting mechanism of the spindle of the guidepin, and Fig 9 is a detail section of the stopmotion by which the rotary motion of the carving-tool can bestopped.

Serial No. 388,627. (No model.)

Similar letters of reference indicate corresponding parts.

In the drawings, A represents the supporting-frame oi the table B of my improved carving-machine, which frame consists of two upright main standards a, which are connected by a top shelf d, on which the patterns are supported that are to be reproduced, while the lower partof the frame is connected by cross-pieces o2. The table B is provided with transverse bottom brackets a7, mounted to turn on a shaft o8, held in vertically-adjustable bearings a, as shown 'in Fig. 3, which bearings are guided in vertical slots of the upright standards a5 and adjusted by means of vertical screw-spindles d4, which engage interiorly-threaded sleeves of said bearings a. The lower ends of the vertical screw-spindles of* are provided with bevel-wheels which mesh with the bevel-wheels of a longitudinal shaft a, that is provided with a hand-wheel at one end, so that on turning said handwheel in one or the opposite direction the screw-spindles are turned in one or the opposite direction, andthereby the guide-bearings of the table B raised or lowered, according to the pol sition to which the table is to be adjusted. To the under side of the table B is applied at one end a Vfixed toothed segment b, which meshes with a pinion b', the shaft of which is supported in one bearing o9, which pinion is provided with a hand-wheel b2, by which rotary motion may be imparted to the pinion, so that the table B may be adjusted to a forward or backward inclination, as required by the work to be done. Vhen the table is adjusted, it is retained rigidly in position by means of pivot-straps d, that are attached to both ends of the table, and clamped by means of clamping nuts d in vertical slots in the main standards d, as shown in Fig. l. rlhese straps remove the strain from the toothed segment and secure the rigid position of the supporting-table B. The table B is provided with a number of short slots cl2, as shown in Fig. 2, so as to permit the convenient clamping, by means of suitable devices A', of the different sizes of wooden blanks to be operated upon. The top shelf a is likewise slotted, so as to secure the patterns in the same manner.

The carving operation is performed by KOC nieans of three carving-tools D, the spindles S ot' Which are supported in suitable bearings at the outerendsol'jointed supporting-frames. each of which is formed oi' two sections D and D2, ot which the latterl is applied by sleeve-shaped ends to a vertical shaft E, that is supported in suitable bracket-bearings and rotated by a suitable belt-and-pulley transmission. The diiferentsupporting-frames D D2 for the carving-tools D are preferably so arranged as to bring the entire length of the supporting-table Within easy and convenient reach of the carving-tools. The front section D of each supporting frame is connected with the rear section D2 by a iixed spindle D3, on Which are loosely mounted -three splined sleeves T, on which the rear end of the front section D can slide vertically, as required, when following the motion of the carvingtool from the Wooden blanks. Each front section D is also provided with a forwardly-extending bracket-arm F, formed of a central rod and tivo curved rods or braces that are united at the front end to form a support for the guide-pin f, which is held vertically above and in line with the spindle of a carving-tool, so that when the guide-pin is moved over the pattern an exact reproduction of the same is produced by the carving-tool on the blank to be carved. To the upper end oi.' the front section D is connected by a pivot-link CZ'l a Weighted arm D8, that is 1"' ulcrumed to a short standard mounted to turn on the upper part of the rear section D2, said Weighted arm serving to counterbalance the front section D and the forwardly-extending bracket-arm of the guidepin,so that the same follows freely the up-and-down motion of the guide-pin as it passes over the pattern. On the upper end of the lowermost of the spline-sleeves T the two independent pulleys c e are mounted loosely, and above the same `the independent loose pulley c2 is mounted. A driving-belt e3 passes around the pulley e and around a pulley on the shaft E, anda belt f passes around the pulley e, connected with the pulley e', and also around a pulley el on the upper end of the carving-tool spindle S. The jointed sections D and D2 can be set at any suitable angle to each other, according to the position required by the carving-tool,while the motiontransmitting pulleys and belts impart the rotary motion to the carving-tool. A handle Dt is applied to the front end of the front section D', by means of which the carving-tool may be moved over the material to be carved, While the guide-pin f is guided over the pattern on the top shelf a.

When it is desired to interrupt the rotary motion of the carving-tool, the transmittingbelt e3 is shifted from the fixed pulley e on the sleeve T to the loose pulley e2on the same, which is accomplished by a belt-shifting device that is shown in Figs. l and 0. It is constructed of a fulcrumed lever g, provided at its lower end with a sleeve g, through which the transmitting-belt e3 passes, and connected at its upper end by a pivot-link g2 with a slidepiece g, thatis guided in a fixed guide-sleeve g and provided at its under side with a longitudinal recess, in which recess is arranged shifting device is not called into action.`

Then it is desired to stop the motion of the carving-tool, the button g7 is turned so that its hook g6 tilts the fulcrumed latch and permits it to be moved With the slide-piece g, through the sleeve g, until the end of the latch arrives at the opposite endot the sleeve in the position shown in Fig. 9, in which position it is retained by the abutting of the button against the end 0f the sleeve. By the oscillating motion imparted to the fnlcrumed lever g the motion-transmitting belt c3 is shifted upon the loose pulley by the lifting action of the sleeve g', and thereby the rotary motion of the carving-tool is interrupted. By returning the latch and slide -pieces into their normal position (shown in Fig. l) the fulcrumed lever returns the tran smitting-belt to the pulley e and imparts thereby rotary motion to the spindle of the carving-tool. The transmitting-shaftE is also provided with a loose pulley to which the transmitting-belt may be shifted, so that no motion is transmitted from the driving-shaft E to the transmitting-belts.

The spindle ot the carving-tool, as well as the spindle of the guide-pin f, is arranged to be adjusted at a suitable inclination from either side to the vertical axis. The adjustment of the spindle of the carving-tool is accomplished by means ot' a disk m, held on the front end ot' the section D and provided with arc-shaped slots m', through which the bolts m2 pass, that have their heads held in the box M, in which the spindle of the carving-tool rotates. The inclination that is to be given to the spindle can readily be determined by a scale arranged on the rim of the diskm and a pointer on the casing or box of the toolspindle. The spindle of the guide-pin fis set to a corresponding degree of inclination by means of the disk N on the front end of the supporting bracket-arm F and a disk N in which the guide-pin is held. The central part of the guide-pin disk is perforated fora screw-spindle O, on which are arranged the nuts O, that serve to tightly hold the guidepin disk after it has been adjusted yto the proper degree of inclination against the disk N. When the carving-tool is adj usted to any angle of inclination, the guide-pin must be likewise adjusted, so as to reproduce the pattern.

Then either one of the side tools is notrequired for use, the frame of the sameis moved to the end of the supporting-frame A and is IOO IIO

IIS

supported in spring-clasps P, which engage the tool-spindle, one spring-clasp being applied to each end standard and the second spring-clasp to an arm attached to a strap that is guided in keepers of each upright standard a, as shown clearlyin Figs. l and 2. The straps may be readily adjusted in position to the spindle, so as to retain the same in position of rest when not required for use, as shown at the right-hand side of Fig. 2.

The advantages of my improved carvingmachine over similar machines of this class are, first, the facility with which every part of the pattern on the supporting-table can be reached by one or the other of the carvingtools, so that large and small pieces can be carved; secondly, the easy raising and lowering of the carving-tool by the front section of the jointed frame; thirdly, the adjustment of the supporting-table to the Work required to be carved; fourthly, the facility with which any one of the carving-tools may be` placed out of work by the belt-shifting device; and, lastly, the advantages by which the spindle of the carving-tool, as well as the guide-pin, may be adjusted to an inclined position for accomplishing work that could not so well be performed by a vertical position of the carving-tool and guide-pin.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- `l. The combination, with a counterbalanced front section supporting the carving-tool and guide-pin, a rear section supported on an upright driving-shaft, and a spindle for connecting the front and rear sections, and splined sleeves mounted on said spindle to turn on the same and onwhich sleeves the i,t'ront section can slide, said sleeves turning With the front section, substantially as set forth.

2. The combination, with a jointed supportin g-frame composed of a rear section supported on an upright driving-shaft, a front section, and a spindle for connectingsaid sections, and splined sleeves mounted to turn on the spindle with the front section,on which sleeves the front section can slide, of a carving-tool at the front end vof the front section, motiontransmitting belts and pulleys for the transmission of rotary motion to the carving-tool, and a belt-shifting devicefor one belt, whereby the motion of the carving-tool may be interrupted, substantially as set forth.

3. In a carving-machine, the combination, with a bracket-arm containing a rotating carving-tool, means for operating said tool, a forwardlyeextending bracket-arm, a jointed sup` porting-frame above the arm carrying the carving-tool, said bracket-arm being provided with a fixed disk, an adjustable disk on said iixed disk= a guide-pin on said adjustable disk, a horizontal screw-spindle at the free end of the bracket-arm, and jam-nuts for adjusting the guide-pin to any suitable inclination on the disk of the bracket-arm, substantially as set forth.

4. In a carving-machine, the combination, with a supporting-frame, of a table, verticallyadjustable bearings with which the table is pivotally connected, gearing and screws for .adjusting table vertically, a segmental rack on the under side of the table, gearing engaging said rack and mounted on one of the bear ings, and a rotating swinging cutting-tool located above the table, toward and from which cutting-tool said table can be shifted vertically, so as to adapt the tool to cut into the wood placed upon the said table, substantially 

